Polypterus senegalus Cuvier, 1829
Gray bichir
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Polypteriformes (Bichirs) > Polypteridae (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335).
More on author: Cuvier.
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335).
More on author: Cuvier.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
; 新鮮な水 底生の; pH range: 6.0 - 8.0; dH range: 5 - 19; potamodromous (Ref. 51243). Tropical; 25°C - 28°C (Ref. 2060); 16°N - 2°S, 17°W - 37°E
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Africa: subspecies Polypterus senegalus senegalus known from West Africa, in Senegal, Gambia, Niger, Volta and Chad basins (Ref. 2835, 3188, 81263), up to Nile River basin (Ref. 2835, 3188) and lakes Turkana (Ref. 3188) and Albert (Ref. 41590, 48922, 48960). Subspecies Polypterus senegalus meridionalis known from middle and upper Congo River basin (Ref. 2835, 3188, 4910, 45434).
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 19.0, range 15 - 23 cm
Max length : 70.0 cm SL オス/雌雄の選別がない; (Ref. 3188); 最大公表体重: 207.00 g (Ref. 3013)
Max length : 70.0 cm SL オス/雌雄の選別がない; (Ref. 3188); 最大公表体重: 207.00 g (Ref. 3013)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 8 - 11; 肛門の骨: 14 - 17; 脊つい: 53 - 59. Diagnosis: Polypterus senegalus is characterized by jaws of equal length or an upper jaw slightly longer than lower jaw and a pectoral fin not reaching the first dorsal ray (Ref. 2756, 2835, 42908, 43035, 81263).
Body shape (shape guide): elongated; Cross section: circular.
Body shape (shape guide): elongated; Cross section: circular.
Facultative air-breathing (Ref. 126274); This species inhabits marginal swamps and freshwater lagoons (Ref. 3066) and it appears to favor sheltered inshore habitats (Ref. 3034); it inhabits the muddy regions at the sides of rivers and swampy waters, where it lies quiet or glides about with snake-like movements (Ref. 49805). During the hottest hours of the day, it comes to the surface just on the outer edge of the vegetation, and it goes back to the bottom when disturbed (Ref. 45962). It feeds on insects, crustaceans, mollusks, frogs and fishes (Ref. 4903, Ref. 28714). Polypterus senegalus senegalus is mainly insectivorous (Ref. 367). Longevity of Polypterus senegalus in captivity can be 34 years and more (Ref. 48954).
Larval fish 1.1-3.8 cm SL were found in papyrus root mat and juveniles up to 10 cm SL retaining external gills were found in fringing water hyacinth. Feeds mainly on fishes (Ref. 9695), insects, crustaceans, mollusks, frogs as well as on plant fragments and seeds.
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
In Polypterus senegalus courtship starts with a series of leaps from the surface by usually only one of the pair at a time, followed by a slow descent through the water; after a while the male stays very close to the female and at times the female will remain motionless in the water and the male will come up to her from behind and nudge her with sidewise movements of his head; the enlarged and swollen anal fin of the male is folded in a cup-like fashion and is used to brush the female (Ref. 42791). No nest is constructed, but the eggs are laid a few at a time throughout the thick vegetation (Ref. 42791). The larvae, which move about with the male parent in a dense school, are provided with accessory gills and appear very salamander-like (Ref. 42791).
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター | 協力者
Gosse, J.P. and J. Daget, 2003. Polypteridae. p. 101-112. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81263)
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 商業
FAO - Publication: search | FishSource |
より多くの情報
解剖学
カマ
脳
オトリス
カマ
脳
オトリス
用具
オーガニック・クイズ | 電子書籍 | 野外観察図鑑 | 検索表 | 長さ-周波数ウィザード | 生活史の基盤ツール | 目的のマップ |
キャッチ-MSY |
特記事項
XMLをダウンロードして下さい
インターネットの情報源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: 部類, 種 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | 公共の水族館 | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 生命の木 | Wikipedia: 行く, 検索する | World Records Freshwater Fishing | Zoobank | 動物に関する記録
モデルに基づく推定値
|
系統多様性指数 (参照 82804) |
PD50 = 0.5003 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00457 (0.00320 - 0.00653), b=2.99 (2.90 - 3.08), in cm total length, based on LWR estimates for this species (Ref. 93245). |
|
栄養段階 (参照 69278) |
3.5 ±0.2 se; based on diet studies. |
|
回復力 (参照 120179) |
低い, ４．５年～１４年の倍増期間の最小個体群 (tmax=34 in Aquarium; Fec < 1,000). |
|
漁業の脆弱性 (Ref. 59153) |
Moderate vulnerability (40 of 100). 🛈 |
|
価格帯 (Ref. 80766) |
Unknown. |
|
栄養素 (Ref. 124155) |
Calcium = 124 [54, 216] mg/100g; Iron = 1.39 [0.84, 2.25] mg/100g; Protein = 18.1 [17.1, 19.2] %; Omega3 = 0.27 [0.11, 0.64] g/100g; Selenium = 76.3 [34.4, 176.1] μg/100g; VitaminA = 18.8 [7.8, 43.0] μg/100g; Zinc = 1.38 [0.99, 1.92] mg/100g (wet weight); |